again the founder of the very popular bikram yoga empire facing trouble over allegations of sexual harassment. he sabotaged her career and abc's nick watt has our story. Reporter: Bikram choudhry pioneered hot yoga, cranked the thermostat up to 105 and gathered a global following including madonna, george clooney and lady gaga. This is called natural viagra. Reporter: A former student once a world class competitor 2350i8ed suit against the 67-year-old multimillionaire guru. The hot yoga she claims way too steamy for comfort. Obviously if she wins it would be very damaging to choudhry's reputation. Reporter: Sarah baughn claims choudhry once told her should we make this a relationship? I know you from a past life. Then days later she says, he pushed her down towards the floor and began whispering sexual things to her until she collapsed into sobs. After she rejected his advances baughn claims choudhry ruined her career, robbed her of the 2008 yoga world title even yanked her legs so har in class she tore a hamstring. Choudhry could not be reached for comment but told "nightline" -- I never cheat. I never hurt another student. Reporter: Baughn never filed a police complaint. She may not garner a lot of judicial or juror sympathy because she kept going back. Reporter: The alleged harassment took place from 2004 through 2008. The case could be thrown out of court because the allegations were too old. You can have marathon sex, 72 hours nonstop. Reporter: Choudhry's classes are sometimes filled with sexually charged language. Baughn claims some of the young women were chosen to brush his hair and massage his body. People talk bad about jozy also. Reporter: Saint or sinner? One day will court decide? For "good morning america," nick watt, abc news, los angeles.

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